unwrapOrElse method
Returns the contained value, if any, or the result of calculateDefaultValue
otherwise.
Examples
// prints "2"
print(const Some(2).unwrapOrElse(() => 3));
// prints "3"
print(const None<int>().unwrapOrElse(() => 3));
Implementation
@override
@useResult
T unwrapOrElse(T Function() calculateDefaultValue) => calculateDefaultValue();